CamperHardlyKnowHer

Newmar Mountain Aire 3823

Class Abuilt 2024– (in production)Better build tierPatient search on the used market
WHAT ONE COSTS
$899,800MSRP today

Still in production — a used 2023 would run roughly $620,900.

THE SPECS
Length38.8 ft
Height (incl. A/C)13.2 ft
Width8.5 ft
Interior height6.9 ft
GVWR54,000 lb
Dry weight41,000 lb
Sleeps5
Slide-outs4
Fresh water105 gal
Grey water80 gal
Black water60 gal
Air conditioning30,000 BTU
Fuel150 gal
GeneratorCummins Onan 10 kW diesel

A missing row means the maker never published that figure — unknown, not zero.

WHERE PEOPLE SLEEP
  • king bed(Permanent)
  • convertible dinette(Convertible)
  • sofa sleeper(Convertible)
HOW IT'S BUILT — 4/5
WallsLaminated fiberglass
FrameSteel
RoofWalk-on
UnderbellyEnclosed

Newmar (Better tier): Newmar Mountain Aire

YEAR BY YEAR — WHAT CHANGED
YEARSGVWRDRYMSRP
2024–2554,000 lb42,500 lb$899,840
2026–54,000 lb41,000 lb$899,840
  • 2024Introduced when Mountain Aire added a 38-foot length for the first time
  • 2027MSRP $899,840; UVW 41,000 lb with 13,000 lb cargo capacity
FINDING ONE

Patient search — weeks of watching, and probably some travel. Why: still in production; priced at the top of its maker’s range. Estimated from build volume and production span — not a count of live listings.

THE READ

The short Mountain Aire - 38 feet, four slides and 13,000 lb of cargo capacity, the most of any plan in the line.

OTHER MOUNTAIN AIRE FLOORPLANS
Is the 3823 your #1 — or just a spec sheet?

These are the facts. Whether it beats the other six thousand rigs for you depends on what you care about — set your priorities as sliders and watch the whole market re-rank around them. Nothing gets hidden, everything gets explained.

Rank it against your setup →

Data compiled from manufacturer spec sheets, retrieved 2026-07.